high and low voltage cut off with delay and alarm
#voltage cutoff
#delay circuit
#alarm circuit
#overvoltage protection
#undervoltage protection
#safety circuit
#monitoring
#protection device
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Simple 6-Input Alarm
This simple alarm circuit was designed for use in a combined garage and rumpus room. It can be assembled on Veroboard and uses just one IC plus a handful of additional components.
The alarm circuit is based on a single integrated...
Conducting pipe control rechargeable delay circuit
The circuit features a delay action with an instantaneous reset control mechanism. It is categorized into three types: a conducting pipe rechargeable delay circuit, a tube cut-off control rechargeable delay circuit, and a discharge-type delay circuit. In the conducting pipe...
Fast-overvoltage-protector
This circuit protects expensive portable equipment against all types of improper hookups and environmental hazards that could cause an overvoltage condition. It operates very quickly and does not latch up; rather, it recovers when the overvoltage condition is removed. In...
logic overvoltage protection
Logic overvoltage protection power supply. Refer to the designated page for an explanation of the power supply circuit diagram mentioned above.
The logic overvoltage protection power supply is designed to safeguard sensitive electronic components from voltage spikes that could potentially damage...
SIMPLE_CROWBAR
These circuits provide overvoltage protection in the event of a voltage regulator failure or the application of an external voltage. They are intended for use with a power supply that incorporates some form of short circuit protection, such as foldback,...
Overvoltage Protection Circuit
An overvoltage protection circuit is designed to safeguard electronic components from excessive voltage that could potentially cause damage or destruction. This project involves constructing a straightforward yet effective overvoltage protection circuit using a fuse and a zener diode as protective...
Delay circuit diagram of energy-saving lamps
The delay-saving lamp circuit functions as a sound and light control delay energy-saving lighting system. It can directly replace a standard light switch without modifying the existing lighting circuits. In bright or daytime conditions, the sound control feature ensures that...
5 Zone Alarm Circuit
Each zone uses a normally closed contact. These can be micro switches or standard alarm contacts (usually reed switches). Zone 1 is a timed zone which must be used as the entry and exit point of the building. Zones 2...
JEC-2 delay circuit diagram consisting of b
The delay application circuit is depicted in Figure JEC-2, which consists of two components. When the input transitions from logic level 0 to 1, the output also changes to 1 immediately. However, when the input transitions from high level 1...